Recorder.



E. B. MGCORMICK.

RECORDER.

APPLICATION FILED .IAN.8,1917.

Patented May 14, 1918.

3 SHEETS-SHEET I E. B. McCORMlCK.

RECORDER.

APPLICATION FILED JAN.B, 1912.

Patented May 14, 1918;

3 SHEETS-SHEET 2.

E. B." MCCORMICK.

RECORDER.

APPLICATION FILED JAN-8,1917.

1,266,292. Patented 14,1918.

3 SHE HEET 3.

. '4- Lave/716.97%

EDMUND B. MCCORMICK, or MANHATTAN, KANSAS.

RECoRnER.

Specification of Letters;Patent.

Patented May 14, 1918.

Application filed January 8, 1917. Serial No. 141,352.

(DEDICATED TO THE PUBLIC.)

1 To all whom it may concern:

Be it known that I, EDMUnn B. MoCoR- MICK, a citizen of the United States of America, and an employee of the Department of Agriculture of p the said United 11 States, and a resident of the town of Manhattan, county of Riley, State of Kansas, (whose post-oflice address is Washington,

D. (l, have invented new and useful Improvements in Recorders.

This application is made under the act of March 3, 1883, chapter 143 (22 Stat., 625),

and the invention herein described and, claimed may be used by the Government of the United States or any of its ofiicers or employees in the prosecution of Work for the Government, or any person in the United States, without payment to me of any. royalty thereon. 1

This invention relates to recorders and is intended to be suitable for use with dynamometers and similar apparatus.

An object of the invention is to provide a recorder in which the paper shall be evenly tion. 1

and uniformly propelled across the table for the reception of the record.

A further object of the invention is to place uniform tension upon the paper that the same may be fed evenly across the table.

A further object of the invention is to provide ready means for the placing upon the recorder and removing therefrom the paper which is toreceive the record; also to provide means-which will roll up the used paper efficiently whether the roll be large or small.

A further object of the invention is to provide an improved stylus mechanism for producing the record and in combination there with means for marking portions of the rec 0rd curve with a viewto their indentificais just sufiicient to take up the paper as fed For. a completeundersta-nding of the invention attention is called to the following description when read inconnection 'with the drawings accompanying and forming a part of these specifications in which like ref- 1 erence characters refer to like parts and in which 1 Figs. and 4 are side views taken from I the right-hand and left-hand, respectively, of the device as shown in Fig. 1; 1

Fig. 5 is a plan view;

Fig. 6 is a section on section line 6, 6, of

Fig. 5; and t v a Fig. 7 is a detail partly in section. The device is supported on a frame, 1, which comprises side plates, 2, 3, and a table plate, 10. The frame of the device may be supported upon supports, l. Plates 2 and 3 are spaced at the bottom by bolts, 5, 6, properly equipped with lock nuts.

The record is preferably received upon metallized paper indicated at 7 and is held upon the machine before use upon feed roll 8, and after use is wound upon roll 9. For the ready placement and removing of the paper rolls, the rolls as received from the factory with a hollow center are placed upon the frusto-conica-l bearings, 11, 12. Of these, bearings 11 are stationary, while bearings 12 may be moved longitudinally against the resistance of springs, 13, for the purpose of the removal of the rolls. The paper is drawn across the table by means of rolls, 15, 16, which are driven by pinions, 17, 18, which in turn are driven by worm and wheel, 19, 20, and flexible shaft, 21. Flexible shaft, 21, is driven in any suitable manner preferably by the mechanism of the vehicle with which the recorder is designed to be' used. Roll 16 bears upon the end of its sh aftapulley wheel, 22, driving by means of belt, 23, a pulley wheel, 24, provided upon the movable bearing, 12, of winding roll, 9. The result of this arrangement is that when rolls 15, 16 are caused to revolve thereby drawing the paper between them, winding roll 9 will be caused to revolve. Supposing that the speed of the roll when nearly empty between rolls 15, 16, thenwhen roll 9 became nearly full of paper its speed of revolution would be too great for the speed of paper coming through rolls 15, 16. However, since the drive of roll 9 is-the belt and pulley referred to, slippage will occur which will not cause too reat tension upon thepaper and will mere y wind the same firmly upon roll 9, l

In order that rolls 15, 16 may place tension upon the paper substantially uniformly throughout its breadth, individual tension is placed upon each end of the shaft carrying roll 15. To accomplish this, shaft 25, upon which roll 15-is carried, is'supported in sliding journals, 26, which journals are supported upon springs, 27.

"s orin 28 and when movement of the 3a "er is to stop, or when the machine is to, be

threaded with a new supply of paper, cams 29 are turned into an upright position thereby raising pin 30 which normally transmits the pressure of spring 28 to the movable journal. The pressure of spring 28 upon the journal is adjusted by turning housing 31 about its axis thereby screw ng the same up or down upon the screw threads- 32, as clearly indicated in Fig. 7. Theresult of this provision for tension is that the paper,

even'if thinner at one edge than the other, will be evenly drawn across the table and wound upon roll 9.

To place tension upon the paper, brake 33, shown in Figs; 4, 5 and 6, is provided,

-which brake is adjusted by means of screws against the compression of springs 35. The springs, 36, which carry the brakc,-33,

are supported in blocks, 37, as indicated in F 4. To maintain the screws 34, in their adjusted position, lock nuts, 38, are pro vided.

The lines formed upon the paper are pro- :duced by any suitable marking means, 39, "40, but I prefer to use for this purpose sharpened brass pins. Fin 40 is a stationary -Attached to said wheel, 42, is a flexible steel band, 43, which steel band is attached to block 44 sliding upon a rectangular slotted shaft, 45. Shaft is rigidly fixed in cylinder 46, andacts not only as, the guide and support for block 44, but also to support spring47, which'is secured at one end within cylinder 46 and at the other end to block 44, and is placed under tension suffL cient todraw block 44 toward the cylinder far enough to indicate the greatest power expected to be applied by the dynamometer. "Sprlng 47' is held normally under tension and is allowed to contract when force. is transmitted by the dynamometer instead of being normally retracted and having tension applied to it by action of the dynamometer. The result of this arrangement is that any Pressure is" placed. upon these ournals by means of with particular portions of the record. gradometer may also-be attachedto the delost motion of the connections between the pin carrying block 44 and the dynamometer, is nonnally held up to its extreme position in one direction and more accurate records result. As block 44 is allowed to move under the influence of the dynamometer the same carries with it pin 39, above referred to, thereby tracing upon the paper the record desired. A numbering engine, 48, or other indicating mechanism of the nature is supported upon plate 2 rigidly so that a blowupon the handle, 49, will stamp the character upon the paper fastened beneath. When the vehicle equipped-withthe mechanism passes any point which ismarked by some conspicuous object, as a road crossing,

culvert, public building, etc, the handle, 49,

may be str-uck'aiid the number or character stamped upon the paper may be entered upon a notebook by an attendant, and in thismanner the indications "given by the record may be tied down sothat particu lar portions of the road may beidentified A vice-in any suitable manner if desired.

Pins 89 and 40 may be adjusted in their supports by screw threads, and are given a slight pressure upon the paper bymeans of springs 50.

' l/Vliat I claim as myinvention is:

1. A recorder comprising means fo'r' holding unused paper, means" for windingused paper,- means comprising a pair-of rollers independently spring pressed togetherat their respective ends for witlidra'wii'ig paper from said holding means and friction ineans for operating said winding means whereby undue speedof winding due togrowth in amount of used paper may becompensated for by slippage and table across which said paper is drawn.

'2. In a recorder in combination, paper supply holding means, paper receiving means, paper propelling means comprising rolls independently adjustably springpressed together at their respective ends and means independent of the spring Y adjustment for removing-the pressure of the springs.

3. In a recorder in" combination,- paper means and a tension device comprising means about which the paper is drawn, a brake to press the paper against said last named means each end of aid brake being adjustably springpressed toward said means. v

4. In a recorder, record paper supporting means; a stylus for coaction'with record paper, stylus controlling means comprising a cylinder, a slotted 'shaftprojecting from said cylinder, a spiral spring surrounding said shaft and-fixed at one end within said supply holding mea;ns, paper propelling cylinder, a block connected to said spring supporting szud stylus and shding upon said slotted shaft and means holding said sprlng v normally under tension and a apted to be actuated by a dynamometer to allow said spring to contract and move said marker.

In testimony whereof, I afiix my signature in the presence of two subscribin Witnesses.

EDMUND B. MCCO% MICK. WVitnesses:

A. M. DANIELS, LAWRENCE L. BEEBE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

